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Home >> BMW >> 2013 >> Z4 28i, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 23 (Engine Electrical System - Repair (N54)) >> 1212 Ignition Wires, Spark Plugs >> 12 12 011 Replacing all spark plugs (N54)

12 12 011 Replacing all spark plugs (N54)

WARNING: This page is about a different variant/trim than selected.

Necessary preliminary work 

IMPORTANT: Wear safety goggles.

Oil and dirt particles may get into your eyes!

Clean spark plug slot with compressed air.

Unscrew the spark plugs with special tool 12 1 220 and an extension with a minimum kink of 8°.

Fig 1: Removing Spark Plugs Using Special Tool (12 1 220)
G06888942Courtesy of BMW OF NORTH AMERICA, INC.

Attach new spark plug (1) 12 1 230 to special tool.

Fig 2: Attaching Spark Plug To Special Tool (12 1 230)
G04755081Courtesy of BMW OF NORTH AMERICA, INC.

Screw the spark plug hand-tight with special tool 12 1 230 into the cylinder head plug thread to the limit position.

Fig 3: Installing Spark Plug Using Special Tool (12 1 230)
G04755082Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: 

Tighten the spark plugs with a torque wrench, special tool 12 1 220 and an extension with a minimum kink of 8°.

Observe tightening torque.

Tightening torque 12 12 2AZ .

Fig 4: Removing Spark Plugs Using Special Tool (12 1 220)
G06888942Courtesy of BMW OF NORTH AMERICA, INC.